A pre-existing construction or land use that conforms to laws on the time of its institution, however doesn’t meet present zoning necessities, is usually thought of exempt from newer, extra restrictive guidelines. For instance, a small bakery working in a residential zone earlier than the world was rezoned completely for residential use could also be permitted to proceed its operations. This kind of exemption is usually granted to keep away from undue hardship on property homeowners and to acknowledge established property rights.
Such exemptions present stability and predictability for property homeowners by safeguarding investments made in good religion reliance on prior laws. They stop abrupt and doubtlessly financially devastating modifications in land use. This authorized precept additionally acknowledges the evolving nature of city planning and acknowledges the impracticality of forcing rapid conformity with each new regulation. Traditionally, this idea has performed an important position in managing the strain between neighborhood improvement targets and particular person property rights.